Answer: A yo-yo in someone's hand
Explanation:
Potential energy is the energy possessed by a body due to virtue of its position. Kinetic energy is the energy possessed by the body due to virtue of its motion.
A swimmer kicking their legs, a car driving on the road, an arrow flying at a target possess kinetic energy because of their motion. A yo-yo in someone's hand possess elastic potential energy.
Yo sup??
Half life=1 year
number of years=3
therefore original sample will become
=1/2*1/2*1/2
=1/8
therefore the correct answer is option C
Hope this helps